Question

Find the zeros of the quadratic polynomial x^2 - 20 x + 100

Answer 1

Answer:

10,10

Step-by-step explanation:

x²-10x-10x+100 = 0

x(x-10) -10(x-10) = 0

(x-10)(x-10) = 0

x= 10,10

Answer 2

Answer:

x² + 10x +10 x + 100

= x ( x+ 10 ) + 10 ( x+ 10 )

== ( x +10 ) ( x + 10 )

therefore

x = -10

x = - 10